The Age of Innocence by Edith Wharton

That terrifying product of the social system he belonged to and believed in, the young girl who knew nothing and expected everything, looked back at him like a stranger through May Welland's familiar features; and once more it was borne in on him that marriage was not the safe anchorage he had been taught to think, but a voyage on uncharted seas. ~ The Age of Innocence by Edith Wharton